Analysis of jitter influence in fast frequency measurements

This paper presents a theoretical analysis of possible jitter impact in application of numeric criterion for fast measurement of frequency by coincidence principle. The primary goal is the generation of a signal containing a known amount of each jitter components. This signal was used for testing signals with regular pulse trains. Initially, jitter components are analyzed and modeled individually. Next, sequences for combining different kinds of jitter are modeled, simulated and evaluated. Jitter model simulation in Matlab is utilized to show the independence of frequency measurement results on the total jitter present in the reference and desired pulse trains independently. A good agreement between previously introduced theory of fast measurement of frequency and simulation in jitter presence is verified; these results allows to engineers use the numeric criterion for fast measurement of frequency in spite to interactions among jitter components in various applications for frequency domain sensors.

► We examine constrains of the novel theoretical method of frequency measurement.
► We model four kinds of jitter applied to unknown and reference pulse trains.
► Mixing these kinds of jitter in all possible ways we’re checking measurement quality.
► Increasing intensity of jitter will decrease quality of measuring conditions.
► It is shown that jitter not affects true position of measuring point in our method.